GB936503A - Improvements in and relating to automatic protective systems for electric motors - Google Patents

Improvements in and relating to automatic protective systems for electric motors

Info

Publication number
GB936503A
GB936503A GB62161A GB62161A GB936503A GB 936503 A GB936503 A GB 936503A GB 62161 A GB62161 A GB 62161A GB 62161 A GB62161 A GB 62161A GB 936503 A GB936503 A GB 936503A
Authority
GB
United Kingdom
Prior art keywords
relating
electric motors
burn
protective systems
automatic protective
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB62161A
Inventor
Colin Hubert Briars
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MORECAMBE ELECTRICAL EQUIPMENT
Original Assignee
MORECAMBE ELECTRICAL EQUIPMENT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MORECAMBE ELECTRICAL EQUIPMENT filed Critical MORECAMBE ELECTRICAL EQUIPMENT
Priority to GB62161A priority Critical patent/GB936503A/en
Publication of GB936503A publication Critical patent/GB936503A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
    • H02H7/0852—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load directly responsive to abnormal temperature by using a temperature sensor

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

936,503. Protective cut-out arrangements. MORECAMBE ELECTRICAL EQUIPMENT CO. Ltd. Nov. 21, 1961 [Jan. 6, 1961], No. 621/61. Drawings to Specification. Class 38 (5). A control system for an electric motor includes one or more " burn-out " devices incorporated in the vicinity of a " hot spot " of the motor and the or each device includes normally open contacts which when closed effect operation of a relay which is then latched for manual release from the operated position and causes opening the of motor circuit. An additional " burn-out " device with a slightly lower temperature setting may energize an " early warning " lamp.
GB62161A 1961-01-06 1961-01-06 Improvements in and relating to automatic protective systems for electric motors Expired GB936503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB62161A GB936503A (en) 1961-01-06 1961-01-06 Improvements in and relating to automatic protective systems for electric motors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB62161A GB936503A (en) 1961-01-06 1961-01-06 Improvements in and relating to automatic protective systems for electric motors

Publications (1)

Publication Number Publication Date
GB936503A true GB936503A (en) 1963-09-11

Family

ID=9707569

Family Applications (1)

Application Number Title Priority Date Filing Date
GB62161A Expired GB936503A (en) 1961-01-06 1961-01-06 Improvements in and relating to automatic protective systems for electric motors

Country Status (1)

Country Link
GB (1) GB936503A (en)

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